Dear listers,

One of my former students is trying to fit a model of the negative 
binomial family with lmer. In the past (two years ago), the following 
call was working well:

m1a<-lmer(mapos~ninter+saison+milieu*zone+(1|code),family=neg.bin(0.451),REML=TRUE,data=manu)

But now (R version 2.9.2 and lme4 version  0.999375-32), that gives 
(even with the library MASS loaded):

 m1a<-lmer(mapos~ninter+saison+milieu*zone+(1|code),family=neg.bin(0.451),REML=TRUE,data=manu)
Error in famType(glmFit$family) : unknown GLM family: 'Negative Binomial'

Any idea about what happens ?

Patrick



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